Door buffer and retainer.



A. O. A. NEIMAN.

DOOR BUFFER AND RETAINER.

APPLICATION FILED 1AN.4.19|1.

Figs 2 11 Witnesses Patented Mar. 27, 1917.

ATE% AT FFTQ.

ALBERT 0. AUGUST NEIMAN, or rorrnra, Kansas, nssrervon or ONE-HALF T WALTER P. DAVIES, or TOEEKA, KANSAS.

DOOR BUFFER AND RETAINER.

specification of Letters Patent.

Patented Mar. 2'2, 1917.

Application filed January 4, 1317. Serial No. 140,632.

To all whom it may concern.

Be it known that I, ALBERT O. Aneusr NEIMAN, a citizen of the United States, residing at Topeka, in the county of Shawnee and State of Kansas, have invented certain new and useful Improvements in Door But.-

ers and Retainers, of which the following is a specification.

My invention, though applicable to doors of all kinds, is designed especially for use on screen doors that are closed by springs or spring hinges, weights, etc. The object is to provide a simple, eiiicient, strong, and durable buffer and in connection therewith a spring which serves as a retainer as well as aiding the buffer in absorbing the shock; also to provide in connection with those parts a simple latch positively to lock the screen door in closed position. My invention comprises a resilient rotary member and a flat spring member adapted to engage the rotary member to retain the door in closed position; also in connection with those members a positive latch; also it comprises the parts, improvements, and combinations hereinafter set forth.

In the drawings accompanying and forming part of this specificationand in the description of the drawings, I have shown my invention in its preferred form and what I deem to be the best mode of applying the principles of my invention; but it is to be understood that, within the scope of the appended claims, I contemplate changes in form, proportions, and materials, the transposition of parts, and the substitution of equivalent members, without departing from the spirit of my invention.

Figure 1 is an elevation of a device made in accordance with the principles of my invention, applied to the door and casing, the door and casing being shown in dotted outlines. Fig. 2 is a rear or edge view of the buffer. Fig. 3 is a face view of the spring retainer. Fig. 4 is a plan view of the buffer, with dotted outlines of the retainer, door, and casing. Fig. 5 is a sectional plan of the buffer on a plane indicated by the line 5' in Fig. 1. Fig. 6 is a view of a modified form of resilient buffer wheel.

Similar reference characters indicate similar parts throughout the several views.

A plate 7 is made with screw holes for attachment to the door casing or stop by means of screws 22, and is also formed with a bracket arm consisting of a part 9 extend ing out at'right angles to the plate and a part 19 parallel therewith and forming a support for a pin 10 which is also supported by the plate, A resilient roller or wheel 11 is mounted on the pin and rotates thereon; it is made preferably of rubber. 12 is a long flat spring formed with slots 15 in its shank for securing it to the door by means of screws 16, and having its upper end formed to correspond with the periphery of the buffer wheel and so as to embrace the upper portion of the wheel, as shown at 13. The extreme tip is upturned as shown at 14.

Pivoted to the part 9 of the bracket arm at 17 is the latch or keeper 18 formed with a hook 20 which is adapted to engage the upturned tip i l of the retainer when the door is closed and the latch is turned over to the upper position indicated by the dotted outlines 23 in Figs. 1 and 2. The latch is also formed with a lug 21 for its convenient.

manipulation by the hand or finger.

In the modified form of buffer roller shown in Fig. 6, I use an inner portion of wood or metal or other material cheaper than rubber, and place thereon a rubber tire, as shown at 25 and 24 respectively.

The dotted outlines 26, 27, and 28 represent the door casing, door stop, and door, respectively.

The buffer is fastened to the casing or stop at a convenient height, with he roller projecting slightly beyond the edge of the stop. The retainer spring is fastened to the door immediately in line with the buffer so that when the door is closing the forwardly curved upper portion of the spring will engage against and ride over the roller, and when the door is closed the curved portion will embrace the upper portion of the roller as indicated clearly in Fig. 1. The shock will be absorbed partly by the riding engagement of the retainer spring with the buffer wheel and partly by the face of the retainer spring striking against the front side of the buffer wheel.

By reason of the spring and this riding engagement in which the spring cooperates with the buifer wheel in absorbing the shock, I do not deem it necessary to use a solid rubber buffer wheel, and consider it sufficient to have only the outer part of the wheel, or the tire, rubber or of resilient mashown in the full outlines; by turning it up to the position indicated by the dotted outlines 23, it engages the upturned tip 14 of the retainer spring, and thus positively latches the door against opening except by releasing the latch from the retainer spring.

The engagement of the retainer spring with the buffer wheel tends to prevent sagging of the door; but in case of slightdislocation of easing or door with relation to each other, the retainer may be adjusted vertically by reason of the slots, Without making new screw holes.

' It will be noted that the upper and lower halves of the-buffer and latch member correspond with each other in inverted relation. Hence, the buffer may be used either on theright or on the left side.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: 1. The combination of a plate formed with screw-holes for attaching same to a door casing and formed also with a bracket arm composed of a portion extending at a right angle to the plate and a portion extending parallel therewith, a pin secured to nd extending between the plate and the last-named portion of the bracket arm, a resilient bufler wheel rotatably mounted on said pin; a long fiat spring formed with screw-slots in its shank for attaching same to a door, and having its upper portion curved forwardly to correspond with and to embrace the upper part of the buffer wheel and having its extreme tip upturned; and a latch pivoted to the first-named portion of the bracket arm and adapted to two positions, in one of which it is disengaged from said upturned tin of the spring, and in the other of which it is adapted to engage said tip and to lock said members together positively.

2. The combination of a plate formed with means for attaching same to a door casing and formed also with a bracket arm, a pin secured to and extending between the plate and the bracket arm, a resilient builer roller mounted rotatably on said pin; a fiat spring adapted to be secured to a door and formed with a curved end corresponding with and adapted to embrace the upper side of the buffer wheel and having an upturned extreme tip; and a latch pivoted to the bracket arm and adapted to engage said upturned tip to lock said members together positively.

In testimony whereof I have aflixed my signature in presence of two witnesses.

ALBERT 0. AUGUST NEIMAN. Witnesses W. P. DAVIES, J. M. STARK.

Copies of this'patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

